public static boolean visit(MappingVisitor visitor, SQLSelectQueryBlock x) {
if (x.getSelectList().size() == 0) {
fillSelectList(visitor, x);
}
if (x.getSelectList().size() == 1) {
if (x.getSelectList().get(0).getExpr() instanceof SQLAllColumnExpr) {
x.getSelectList().clear();
fillSelectList(visitor, x);
}
}
if (x.getFrom() == null) {
Entity firstEntity = visitor.getFirstEntity();
SQLExprTableSource from =
new SQLExprTableSource(new SQLIdentifierExpr(firstEntity.getName()));
x.setFrom(from);
}
for (SQLSelectItem item : x.getSelectList()) {
item.setParent(x);
}
return true;
}
public static void setDataSource(MappingEngine engine, SQLInsertStatement stmt) {
if (stmt.getTableSource() == null) {
Entity entity = engine.getFirstEntity();
stmt.setTableSource(new SQLIdentifierExpr(entity.getName()));
}
}